Microchannel Heat Exchanger Fin Assembly With Staged Positioning
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Solution Overview
Problem
Large-size microchannel heat exchangers face challenges in assembly due to the large number of fins being assembled at once, leading to deformation and compromised assembly efficiency.
Innovation Solution
A processing method and device for heat exchangers that involve preparing heat exchange and fin modules, where the heat exchange module is placed on a platform and limited in width and length, and the fin module is aligned with the flat tubes, allowing for incremental assembly of fins with the tubes, reducing deformation and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If all fins are assembled to flat tubes at one time, then assembly completeness is achieved, but fin deformation occurs and assembly quality deteriorates
Solution Approach 1:
The patent divides the assembly process into multiple stages, first assembling a subset of fins (first fin) to flat tubes, then subsequently assembling remaining fins (second fin). This segmentation prevents overwhelming the structure with all fins at once, reducing deformation while maintaining complete assembly eventually.
2Productivity
If multiple fin modules are assembled simultaneously, then assembly efficiency is improved, but deformation increases
Solution Approach 1:
The patent segments fin modules into different batches (first fin module with first fin, second fin module with second fin) and assembles them at different times. This temporal segmentation allows each batch to be handled with appropriate care, preventing deformation while maintaining overall assembly efficiency.
Solution Approach 2:
The patent performs preliminary positioning and fixation of the heat exchange module on the platform before assembling fin modules. This preliminary action establishes a stable base that can support subsequent fin assemblies without causing deformation, enabling efficient multi-stage assembly.
3Adaptability or versatility
If heat exchange module is not positioned and limited, then assembly flexibility is maintained, but assembly precision deteriorates
Solution Approach 1:
The patent performs preliminary positioning by placing the heat exchange module on a dedicated platform and using positioning pieces to limit its position in width and length directions. This preliminary action establishes precise coordinates for subsequent fin module assemblies, ensuring high assembly precision while maintaining overall process flexibility.
Solution Approach 2:
The patent introduces a platform as an intermediary between the heat exchange module and the assembly environment, and positioning pieces as intermediaries to limit the module's position. These intermediaries provide precise positioning and support without constraining the overall assembly flexibility, enabling accurate fin module placement.
Data Source
AI summary
A processing method for a heat exchanger includes: operation S100, preparing a heat exchange module, wherein the heat exchange module includes a plurality of flat tubes; operation S200, placing at least part of the heat exchange module on a first platform; operation S300, limiting the heat exchange module in a width direction of the first platform; operation S400, limiting the heat exchange module in a length direction of the first platform; operation S500, preparing a fin module; operation S600 or operation S700, using a pushing piece to push the heat exchange module to move the plurality of flat tubes by a preset distance along the width or length direction of the first platform; and operation S800, repeating operations S500 and S600, or repeating operations S500 and S700, until installation of N fin modules and one heat exchange module is completed, wherein N is greater than or equal to 2.